#HTE
The last time human beings were far enough away from Earth to see the entire planet at once was December 7, 1972. That’s when the crew of Apollo 17 captured this photograph, which we now call “The Blue Marble.” For obvious reasons, today’s celebration of #EarthDayis one of the most meaningful days of the year for our team. We look forward to another year of searching for and sharing these vast perspectives with you – to inspire the powerful awe that comes when you experience the Overview Effect. We continue to believe that if we can wonder in these view more often, we’ll do what’s right and what’s necessary to protect our one and only home.
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Source imagery: NASA - National Aeronautics and Space Administration
http://dailyoverview.tumblr.com/post/173200527669